Analog Bassdrum module
I can’t remember where I got the PDF from maybe Reddit but I built the simplest version of it and it works fine. You can modify pitch/frequency and decay.
Active Mixer – with output gainstage
This was the second active mixer I built and I wanted some more features as in the first one so I extended the first design a bit. Every channel can be muted and there is a gain stage at the output. i am really happy with this design because I have a couple of modules […]
Tuner module – Guitar Tuner Hack
I learned about this hack on Eddy Bergmans page : Here My psu has a 5V rail and I soldered 3 1n4148 diodes in series to drop 2V to the 3V the tuner needs to function. When you turn on the system mine doesn’t turn on automatically. But pressing the button 3 seconds turns it […]
Simple VCF – full of squealing resonance
I can tell you this VCF is one dirrty VCF. It works but you can’t even compare it to any MS-20 build. But it has a ton if resonance. This is the original post: Here
Quantizer – Hagiwo Arduino build
It has a slide function that can be used with external cv or configured with a knob. A rotary encoder changes scales. Other than that it just quantizes incoming CV and pretty accurate at that. The 12-bit DAC is enough for my purposes. Link to original project page: Here #define ENCODER_OPTIMIZE_INTERRUPTS //エンコーダノイズ対策 #include <Wire.h> #include […]
Digital Kickdrum – Hagiwo Build
The Kick module hagiwo designed is pretty neat, it sounds compressed and can be pretty dirty. It was my third hagiwo build and it was pretty straight forward. You get a couple of knobs to manipulate the sound: frequency, harmonic, decay, attack. #include <avr/io.h> //———basic waveform make——————– unsigned int frq = 60000; //frequency float duty […]
Ardrando – Arduino based random quantized sequence generator
I found this module on reddit and really liked the youtube video I can’t find right now but there is a github How to make this any better? So far I had no problems with the build BUT there some output and input protection missing imo. Maybe attenuate too hot signals going in? Idk. But […]
Logic Module – AND OR NOT
This is one of my own modules and by far the simplest. I built it because I wanted logic gates for my CV and I have to say it works nicely. The AND gate has two inputs and one output, the OR gate has three inputs and one output. Both are based on diode logic. […]
Dual OSC Mozzi VCO – Hagiwo Build
This VCO has two oscillators. They can be tunes seperately. The theid knob is for changing the waveform (noise, saw, tri, sine, square) It takes a 1v/Oct signal for the pitch and has an octave switch to set it one octave higher or lower. Link to original project page: Here Everything works fine, but the […]
FM VCO – Hagiwo build
This Mozzi based Arduino VCO sounds really great. Link to the original project page: Here Hagiwo’s code: Important to note is that you’ll need the MOZZI Arduino Lib to get this to run. #include <MozziGuts.h>#include <Oscil.h>#include <tables/cos2048_int8.h> // table for Oscils to play#include <mozzi_fixmath.h>#define CONTROL_RATE 256 // Hz, powers of 2 are most reliableOscil<COS2048_NUM_CELLS, AUDIO_RATE> […]
knopsl modular 